Buttermilk Coffee Cake - cooking recipe

Ingredients

1 stick unsalted butter, cut in bits and softened
1 c. granulated sugar
2 large eggs
2 c. all-purpose flour
1 tsp. baking soda
1 tsp. baking powder
1/2 tsp. salt
1 c. buttermilk
1 tsp. vanilla
1/3 c. firmly packed dark brown sugar
1 tsp. cinnamon
1/2 c. chopped pecans or walnuts

Preparation

Beat the first 9 ingredients in a large bowl with an electric mixer until smooth and fluffy.
Make a topping of the brown sugar, cinnamon and chopped pecans or walnuts.